company news about How to Effectively Monitor Salinity and TDS in Desalination and Saltwater Systems?

Desalination processes, whether through Reverse Osmosis (RO) or distillation, require robust sensors to monitor the transition from high-salinity seawater to fresh drinking water. For the initial stages, a sensor with a high measuring range of 0 to 200 mS/cm is required to handle the high ionic concentration of raw seawater. As the water is purified, sensors with lower ranges, such as 5 to 2000μS/cm, are used to verify the efficiency of the membranes. A single-channel controller that displays salinity and TDS is indispensable here, as it provides a direct measurement of the salt rejection rate.

Because seawater is highly corrosive, the choice of sensor material is limited to those that can resist chloride attack. Titanium alloy is the industry standard for saltwater applications, offering far better longevity than stainless steel. Additionally, these systems often operate under high pressure to force water through membranes, making sensors with a 0 to 17 bar pressure rating a requirement. The controller also monitors temperature, which is vital because the viscosity and osmotic pressure of saltwater change with heat. By providing a clear readout of conductivity and resistivity, the system ensures that the final output is safe for consumption or industrial use, protecting downstream infrastructure from salt-induced damage.